So then can’t we just leave [the Japanese] be?
In a competitive environment, we should expect that only the ideologies that replicate themselves and spread will survive, much like animals in nature. Most encounters will therefore be with virulent ideologies.
Globalist Liberalism, Neoliberalism, and so on, including their ideologies of “human rights”, are no exception to this.
So no, they can’t well just leave Japan alone. That would be an admission of failure and that Globalism/Neoliberalism/etc is not universal in value.
Edit: Also, “different ways are optimal for different countries” is a very Nationalist, and thus Villainous, way of seeing the world.